How does ammonia react with a solution of `"Cu"^(2+)` ?

Explanation

To understand how ammonia reacts with a solution of copper(II) ions (Cu²⁺), we can break down the process step by step:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- Copper(II) ions (Cu²⁺), which are typically present in an aqueous solution and give a blue color to the solution.
- Ammonia (NH₃), which is a common ligand in coordination chemistry.

**Hint:** Look for the characteristics of the reactants, such as color and state.
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